Vollnhals, O. (1984). Elsevier's dictionary of personal and office computing: In five languages, English, German, French, Italian, and Portuguese. Elsevier.
Chicago-viite (17. p.)Vollnhals, Otto. Elsevier's Dictionary of Personal and Office Computing: In Five Languages, English, German, French, Italian, and Portuguese. Amsterdam ; New York: Elsevier, 1984.
MLA-viite (8. p.)Vollnhals, Otto. Elsevier's Dictionary of Personal and Office Computing: In Five Languages, English, German, French, Italian, and Portuguese. Elsevier, 1984.
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